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Title: The study of TCP performance in IEEE 802.11 based mobile ad hoc networks
Authors: LI XIA
Keywords: TCP, 802.11 MAC, Ad hoc networks
Issue Date: 30-Jan-2008
Citation: LI XIA (2008-01-30). The study of TCP performance in IEEE 802.11 based mobile ad hoc networks. ScholarBank@NUS Repository.
Abstract: Transport Control Protocol (TCP) is a transport protocol that guarantees reliable ordered delivery of data packets over wired networks. Although it is well tuned for wired networks, TCP performs poorly in Mobile Ad Hoc NETworks (MANETs). This thesis first focuses on the interaction between TCP and IEEE 802.11 Medium Access Control (MAC) protocol, and investigates 802.11b s inadequacy in handling multiple packet losses which seriously deteriorate the TCP performance. A mathematical analysis is carried out to model the TCP behavior over 802.11 based ad hoc networks. Based on the study, a simple enhancement is made to IEEE 802.11 MAC protocol to improve network performance. Furthermore, this thesis investigates the inefficiency of TCPb s Additive Increase Multiplicative Decrease congestion control algorithm and cumulative acknowledgment technique, and proposes a totally new transport protocol for MANETs.
Appears in Collections:Ph.D Theses (Open)

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